Blow dryer attachment



FIG. 1 is a perspective view of a blow dryer attachment showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a right side elevational view thereof, the side opposite being a mirror image of the side shown; and,

FIG. 6 is a front elevational view thereof. 

The ornamental design for a blow dryer attachment, as shown and described. 